MongoDB 8.3.x < 8.3.7 Aggregation Framework Memory Exhaustion (SERVER-128584)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(331217);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/07/31");

  script_cve_id("CVE-2026-13076");
  script_xref(name:"IAVA", value:"2026-A-0773");

  script_name(english:"MongoDB 8.3.x < 8.3.7 Aggregation Framework Memory Exhaustion (SERVER-128584)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of MongoDB installed on the remote host is 8.3.x prior to 8.3.7. It is, therefore, affected by a
vulnerability:

  - An authenticated user can cause a mongod process to be terminated by the operating system under memory
    pressure by performing a specific data type conversion operation within MongoDB's aggregation framework.
    The behavior stems from disproportionate memory consumption during this operation, and requires both write
    access to the database and the ability to run aggregation queries. (CVE-2026-13076)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://jira.mongodb.org/browse/SERVER-128584");
  script_set_attribute(attribute:"solution", value:
"Upgrade to MongoDB version 8.3.7 or later.");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-13076");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/07/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/07/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/07/30");

  script_set_attribute(attribute:"plugin_type", value:"combined");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mongodb:mongodb");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Databases");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mongodb_win_installed.nbin", "mongodb_nix_installed.nbin", "mongodb_macos_installed.nbin", "mongodb_detect.nasl");
  script_require_keys("installed_sw/MongoDB");

  exit(0);
}

include('vdf.inc');

# @tvdl-content
var vuln_data = {
  'metadata': {'spec_version': '1.0'},
  'checks': [
    {
      'product': {'name': 'MongoDB', 'type': 'app'},
      'check_algorithm': 'default',
      'constraints' : [
        {'min_version':'8.3.0', 'fixed_version':'8.3.7'}
      ]
    }
  ]
};

var vdf_result = vdf::check_and_report(vuln_data:vuln_data, severity:SECURITY_WARNING);
vdf::handle_check_and_report_errors(vdf_result:vdf_result);